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Geometry Terms
Geometry Terms
26
Mathematics
6th Grade
03/23/2011

Additional Mathematics Flashcards

 


 

Cards

Term
skew lines
Definition
lines on different planes that never intersect
Term

 

obtuse angle

Definition

 

an angle that measures more than 90, but less than 180

 

Term
acute angle
Definition

 

an angle that measures less than 90

 

Term
equilateral triangle
Definition

 

a triangle with all equal sides

 

Term
isosceles triangle
Definition

 

a triangle with 2 equal sides

 

Term
scalene triangle
Definition

 

a triangle with no sides equal

 

Term
parallel lines
Definition

 

lines (in the same plane) that do not intersect and never will

 

Term
perpendicular lines
Definition

 

lines that intersect to form right angles

 

Term
right angle
Definition

 

an angle that measures exactly 90

 

Term
line
Definition

 

a straight path that goes on forever in both direction

 

Term
point
Definition

 

an exact location in space

 

Term
ray
Definition


a line that has a starting point and goes on in the other direction forever

Term
chord
Definition

 

a line through a circle not touching the center

 

Term
line segment
Definition

 

a part of a line

 

Term
intersecting lines
Definition

 

lines that cross at one point

 

Term
supplementary angles
Definition

 

angles that are next to each other and add up to be 180

 

Term
complimentary angles
Definition

 

angles that are next to each other and add up to be 90

 

Term
straight angle
Definition

 

an angle that measures exactly 180

 

Term
reflex angle
Definition

 

an angle that measures between 180 and 360

 

Term
radius
Definition

 

distance half way across a circle

 

Term
diameter
Definition

 

distance across a circle through the center

 

Term
circumference
Definition

 

the distance around a circle

Term
congruent
Definition

 

he same shape and size

 

Term
reflection
Definition
When a figure flips ovr a line or axis
Term
rotation
Definition
turning a figure around a fixed point
Term
translation
Definition
a movement of a figure along a straight line
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